new icon and actionbar resources
some new strings and removed pref keys from here
moved XMPP address back to right package
small changes to menu icons
added new preferences and remove @string pref keys
changed send button to ImageButton like google's
got "empty" list message working correctly
fixed Google OAuth2 auth bugs
fixed Google OAuth2 setup bugs for some devices
added actionbar OTR icon toggling; other small tweaks
added pref to support storage of messages NOT in :memory
moved import of XmppAddress
hide actionbar on main splash screen
shows apps in spinner actionbar list even if not logged in
moved pref keys to strings from @string resources
heap and launch mode tunings
cleaned up RosterListener to handle presence info
layout and themeing improvements

- chat layout now left/right justified for sender/receiver
- also app supports user selected background wallpaper/image across the whole app
moved err dialog message to a singleTop

should reuse err activity if possible
Merge pull request #199 from n8fr8/v11-more-ui-updates

V11 more ui updates